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[期刊论文] 作者：Stefanie M. ICKERT-BOND,,
来源：Journal of Systematics and Evolution 年份：2009
The study of biogeography has benefited from the exponential increase of DNA sequence data from recent molecular systematic studies...
A fossil-calibrated relaxed clock for Ephedra indicates an Oligocene age for the divergence of Asian
[期刊论文] 作者：Stefanie M. ICKERT-BOND,Catari,
来源：植物分类学报：英文版 年份：2009
Ephedra 包括约 50 种类，它同等地粗略地在旧、新的世界沙漠之间被散布，然而并非在干涉区域(amphitropical 范围) 。处于 Gnetales (Ephedra， Gnetum，和 Welwitschia ) 的替换率...
A fossil-calibrated relaxed clock for Ephedra indicates an Oligocene age for the divergence of Asian
[期刊论文] 作者：Stefanie M. ICKERT-BOND,Catari,
来源：植物分类学报 年份：2004
Ephedra comprises approximately 50 species, which are roughly equally distributed between the Old and New World deserts, but not in the intervening regions (amp...
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